Kazunari Uehara (上原 一成,Uehara Kazunari?) is a minor character. He is a friend of Subaru and he seems close to Aoi too.

A bookworm-type person, but he always intentionally joking about Subaru being a lolicon while Aoi is also presented, which is considered offensive after his basketball club's deactivation, thus getting himself beaten up by Aoi violently every time.